How indoor heat stresses plants

Indoor heat stresses plants even when watering and light seem fine. In Indian homes, this is a year-round concern.

What's happening

High temperatures increase moisture loss through leaves. When this outpaces root supply, leaves wilt, curl, or develop crispy edges — even if soil is moist. The plant dehydrates from outside in.

Why this happens

West-facing walls radiate stored heat, kitchens raise ambient temperature, and electronics produce steady warmth. Summer indoor temps hit 35–40°C in many Indian cities without AC. Concrete balconies absorb and re-radiate heat, making pots much hotter than air temperature suggests.

What usually helps

Move plants a metre away from heat sources and sun-baked walls. Elevate balcony pots on wooden slats to reduce floor heat transfer. Use light-coloured or terracotta pots — dark plastic absorbs heat and cooks roots. Water in early morning so roots absorb moisture before peak heat.

What to expect next

Leaves regain firmness within a day or two once heat stress is reduced. Prolonged exposure takes longer to recover from, but new growth should be healthy.